摘要
将一种新的混合方法—FEM /PO PTD方法 ,应用于分析计算背腔式微带天线的电磁散射特性。通过无穷大接地导体平面上矩形背腔式微带天线的RCS计算 ,验证了该方法的正确性。在此基础上 ,计算了两组有限尺寸金属载体上背腔式微带天线的RCS曲线。理论分析与计算结果表明 ,该混合方法具有计算机内存需求少、计算时间短等优点。
In this paper, a hybrid technique FEM/PO PTD method is applied in solving electromagnetic scattering by microstrip patch antennas residing in a cavity. The RCS's of a rectangular cavity backed aperture in an infinite ground plane and two cavity backed microstrip antennas mounted respectively on a finite metal object are calculated and analyzed. The numerical results show the efficiency of the technique with some advantages in saving computer memory and CPU time.
出处
《电波科学学报》
EI
CSCD
2002年第4期365-369,共5页
Chinese Journal of Radio Science
